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Probabilistic estimates of the distribution of near-surface permafrost in Alaska

Distribution of near-surface permafrost in Alaska


Publication Date


Pastick, N.J., Jorgenson, M.T., Wylie, B.K., Nield, S.J., Johnson, K.D., and Finley, A.O., 2015, Probabilistic estimates of the distribution of near-surface (within 1m) permafrost in Alaska: U.S. Geological Survey data release,


High-latitude regions are experiencing rapid and extensive changes in ecosystem composition and function as the result of increases in average air temperature. Increasing air temperatures have led to widespread thawing and degradation of permafrost, which in turn has affected ecosystems, socioeconomics, and the carbon cycle of high latitudes. Research shows that the distribution of permafrost is heterogeneous in nature and that permafrost responds to a wide range of ecological factors. Here we overcome complex interactions between surface and subsurface conditions to map near-surface permafrost using decision-tree models, field observations, remotely sensed and derived data, and climatic indices. The resultant dataset was designed [...]


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AK_PFProbability_1m.7z 777.24 MB application/x-7z-compressed


This medium resolution (i.e. 30-m pixels) spatial dataset provides an estimate of the occurrence of near-surface (within 1 m of the ground surface) permafrost in Alaska. This dataset was developed in support of the Alaska LandCarbon Project. Research related to this product was funded by the U.S. Geological Survey Land Change Science Program.




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  • USGS Data Release Products

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Type Scheme Key
DOI doi:10.5066/F7C53HX6

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